Icebox Trap (CR 10)

Icebox Trap CR 10

XP 9,600

Source: Pathfinder Adventure Path #34.

This trap forms a 1-foot-thick wall of ice along every wall (blocking doorways) and reduces the temperature in the room to –30º F for 12 minutes. Once the trap runs its course, both doors unlock, but the walls of ice blocks remain for 12 minutes.